Technical information

Technician’s Handbook
20
Circuit Cards
Peripheral Interface Cards
Table 2: Peripheral Interface Cards
Card Devices Supported Circuits Maximum Loop
Resistance/LoopLengths
AC15 Trunk
Card
AC15 trunk 8 not applicable
COV Line
Card
SUPERSET™ 3 and
SUPERSET 4 telephones
12 Loop resistance: 280 ohms
Loop length:
26 AWG (27 IWG) - 1000 m
(3300 ft.)
24 AWG (25 IWG) - 1500 m
(5000 ft.)
22 AWG (22 IWG) - 2000m
(6000 ft.)
DID/Loop Tie
Trunk Card,
DID/2 Card
Direct Inward Dial (DID)
trunks from CO
4 Loop resistance: 2450 ohms
Loop length:
26 AWG (27 IWG) - 7986 m
(25955 ft.)
22 AWG (22 IWG) - 19995 m
(64984 ft.)
DNI Line
card
SUPERSET digital
telephones
Datasets
Attendant Consoles
Programmable Key
Modules
DNIC MOH/Paging Unit
16 Loop length:
24 AWG (25 IWG) - 1000 m
(3300 ft.) including up to 50 m
(162.5 ft.) 22 AWG (22 IWG)
quad wire and up to 3 m modular
line cord without bridge taps.
DTMF
Receiver
Card
DTMF telephone keypads
and end-to-end signaling
equipment.
16 not applicable
E&M Trunk
Card
E&M tie trunk
Music on hold equipment
Loudspeaker equipment
Paging equipment
4 not applicable
(Sheet 1 of 2)